Hp 49g Graphing Calculator Manual do Utilizador descarregar pdf (Página 71)

Factoring unit expressions

The UFACT command factors one unit within a unit object, returning a

luiit object whose unit expression consists of the factored unit and the

remaining SI base units.

To Factor units within a unit expression

1. Press 0 ÌUN0 TOOLS UFACT

2. Enter the imit object with the original imits.

Example; 74_pdl.

3. Press ©Q.

4. Enter any number (such as 1) and attach the imits you want to factor

out.

Example: 10g.

5. Press ¡Hi).

Answer: 10.2308666238_kgm/s^.

In RPN mode: follow steps 2, 4, and 1.

Working with temperature units

The HP 49G lets you work with temperature imits in the same way that

you work with other units. However, you need to be alert to the difference

between temperature level and temperature difference. For example, a

temperatine level of 0°C means “the freezing point of water”, but a

temperatine difference of 0°C means “no change.”

When °C or °F represents a temperatine level, the temperatine is a unit

with an additive constant: 0°C = 273.15 K, and 0°F = 459.67°R. But when

°C or °F represents a temperature difference, the temperature is a unit

with no additive constant: 1°C = 1 K, and 1°F = 1°R.

Page 6-8

Unit objects

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Hp 49g Graphing Calculator Manual do Utilizador Página 71